{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-34321 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2023-34321 is a low-severity vulnerability in Xen Xen, published on 5 Jan 2024. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-34321 and fix it if it is affected.\n\nWhat it is: CVE-2023-34321 is a low-severity vulnerability in Xen Xen, published on 5 Jan 2024. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-34321 in the wild and no public exploit code.\n\nAffected product: Xen Xen. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2023-34321/ (Markdown: https://insights.sbomify.com/CVE-2023-34321/index.md)","id":"CVE-2023-34321","markdown":"https://insights.sbomify.com/CVE-2023-34321/index.md","name":"CVE-2023-34321","record":{"aliases":["ALPINE-CVE-2023-34321","DEBIAN-CVE-2023-34321","GHSA-p5q9-hxvv-3rqq","UBUNTU-CVE-2023-34321"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["data_read","data_modify"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Xen hypervisor","requires_auth":"low_privilege","summary":"An integer overflow in Xen's arm32 cache helpers may skip cache invalidation, allowing guest memory writes to be lost or stale data to be read.","user_interaction":"not_required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"XEN","cpe":[{"product":"xen","vendor":"xen"}],"cvss":{"score":3.3,"severity":"low","source":"cisa-adp","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-119","name":"Improper Restriction of Operations within the Bounds of a Memory Buffer"}],"description":"Arm provides multiple helpers to clean \u0026 invalidate the cache\nfor a given region.  This is, for instance, used when allocating\nguest memory to ensure any writes (such as the ones during scrubbing)\nhave reached memory before handing over the page to a guest.\n\nUnfortunately, the arithmetics in the helpers can overflow and would\nthen result to skip the cache cleaning/invalidation.  Therefore there\nis no guarantee when all the writes will reach the memory.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"arm32: The cache may not be properly cleaned/invalidated","id":"CVE-2023-34321","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"xen:xen","products":["xen:xen"],"type":"integer_overflow","year":"2023"},"n_packages":0,"n_references":1,"next":{"headline":"top-level shadow reference dropped too early for 64-bit PV guests","id":"CVE-2023-34322"},"packages":[],"prev":{"headline":"arm: Guests can trigger a deadlock on Cortex-A77","id":"CVE-2023-34320"},"products":["Xen"],"published":"2024-01-05","related":[{"cvss_score":10,"headline":"Privilege escalation in n/a","id":"CVE-2017-10912","kev_date_added":null,"published":"2017-07-05"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2017-10918","kev_date_added":null,"published":"2017-07-05"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2017-10920","kev_date_added":null,"published":"2017-07-05"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2017-10921","kev_date_added":null,"published":"2017-07-05"},{"cvss_score":9.8,"headline":"Mutiple vulnerabilities in the Viridian interface","id":"CVE-2025-27466","kev_date_added":null,"published":"2025-09-11"},{"cvss_score":9.8,"headline":"Mutiple vulnerabilities in the Viridian interface","id":"CVE-2025-58142","kev_date_added":null,"published":"2025-09-11"},{"cvss_score":9.8,"headline":"Mutiple vulnerabilities in the Viridian interface","id":"CVE-2025-58143","kev_date_added":null,"published":"2025-09-11"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-11-04","vendors":["Xen"]},"summary":"An integer overflow in Xen's arm32 cache helpers may skip cache invalidation, allowing guest memory writes to be lost or stale data to be read.","url":"https://insights.sbomify.com/CVE-2023-34321/"}